Abstract

By means of an integrated approach, including molecular, morphological, anatomical and histological data, we describe a new species of freshwater flatworm of the genus Dugesia from southwest China, representing the third species recorded for the country. Morphologically, the new species, Dugesia umbonata Song & Wang, sp. nov., is particularly characterised by the presence of a muscularised hump immediately antero-dorsally to a knee-shaped bend in its bursal canal and by an ejaculatory duct that opens subterminally through the dorsal side of the penis papilla. Four molecular datasets (18S rDNA; ITS-1; 28S rDNA; COI) facilitated determination of the phylogenetic position of the new species, which belongs to a clade comprising other species from the Australasian and Oriental regions. We also analysed the structure of its major nervous system by means of the acetylcholinesterase (AChE) histochemical method and compared these results with data available for three other species of Dugesia.

Addeddate

2024-05-08 12:43:11

Bhl_virtual_titleid

165999

Bhl_virtual_volume

v.96()(2020)

Call number

10_3897_zse_96_52484

Call-number

10_3897_zse_96_52484

Foldoutcount

0

Genre

article

Identifier

newspeciesduges96song

Identifier-ark

ark:/13960/s2743ts5wnc

Identifier-bib

10_3897_zse_96_52484

Identifier-doi

10.3897/zse.96.52484

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

76

Page_number_module_version

1.0.5

Page_range

431-447

Pages

17

Pdf_module_version

0.0.23

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

v.96(2020)

Year

2020

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